<template>
    <div class="login">
        <section class="form_container">
            <div class="manager_tip">
                <span class="title">在线后台管理系统</span>

                <el-form :model="loginUser" :rules="rules" ref="loginForm" label-width="60px"
                         class="loginForm">
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="loginUser.email" placeholder="请输入Email"></el-input>
                    </el-form-item>
                    <el-form-item label="密码" prop="password">
                        <el-input type="password" v-model="loginUser.password" placeholder="请输入密码"></el-input>
                    </el-form-item>

                    <el-form-item>
                        <el-button class="submit_btn" type="primary" @click="submitForm('loginForm')">登录</el-button>
                    </el-form-item>
                    <div class="tiparea">
                        <p>还没有账号?现在
                            <router-link to="/register">注册</router-link>
                        </p>
                    </div>
                </el-form>
            </div>
        </section>
    </div>
</template>

<script>
    import jwt_decode from 'jwt-decode';

    export default {
        name: "login",
        comments: {},
        data() {
            return {
                loginUser: {
                    email: "",
                    password: "",
                },
                rules: {
                    email: [
                        {type: "email", required: true, message: "邮箱格式不正确", trigger: 'blur'}
                    ],
                    password: [
                        {required: true, message: "密码不能为空", trigger: 'blur'},
                        {min: 6, max: 30, message: "长度在6~30之间", trigger: 'blur'}
                    ]
                }
            }
        },
        methods: {
            //登录
            submitForm(formName) {
                this.$refs[formName].validate((valid) => {
                    if (valid) {
                        //发送请求
                        this.$axios.post(`${this.$axios.baseUrl}/api/users/login`, this.loginUser).then(res => {
                            //拿到token
                            // console.log(res);
                            const {token} = res.data;
                            //存储到ls
                            localStorage.setItem("eleToken", token);

                            //解析token
                            const decoded = jwt_decode(token);
                            // console.log(decoded);

                            //token存储到vuex中
                            this.$store.dispatch("setAuthenticated", !this.isEmpty(decoded));
                            this.$store.dispatch("setUser", decoded);

                            console.log(2)
                            //页面跳转
                            this.$router.push("/index");
                            
                        });
                    }
                });
            },
            isEmpty(value) {
                return (
                    value === undefined ||
                    value === null ||
                    (typeof value === "object" && Object.keys(value).length === 0) ||
                    (typeof value === "string" && value.trim().length === 0)
                );
            }
        }
    }
</script>

<style scoped>
    .login {
        position: relative;
        width: 100%;
        height: 100%;
        background: url(../assets/bg.jpg) no-repeat center center;
        background-size: 100% 100%;
    }

    .form_container {
        width: 370px;
        height: 210px;
        position: absolute;
        top: 20%;
        left: 34%;
        padding: 25px;
        border-radius: 5px;
        text-align: center;
    }

    .form_container .manage_tip .title {
        font-family: "Microsoft YaHei";
        font-weight: bold;
        font-size: 26px;
        color: #fff;
    }

    .loginForm {
        margin-top: 20px;
        background-color: #fff;
        padding: 20px 40px 20px 20px;
        border-radius: 5px;
        box-shadow: 0px 5px 10px #cccc;
    }

    .submit_btn {
        width: 100%;
    }

    .tiparea {
        text-align: right;
        font-size: 12px;
        color: #333;
    }

    .tiparea p a {
        color: #409eff;
    }
</style>
